That looks greatThe design of my cabinet allows the top portion of the display that includes the DMD hidden. I only see the mirrored version on the backglass. My startup script places the mirrored window and I navigate the menus with the joystick. I am using another script for the backglass. It all works seamlessly now and I am very happy. Thanks pinballnoob!
1) no. Ball size is good
2) no, dmd position is fixed